./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:43:27,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:43:27,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:43:27,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:43:27,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:43:27,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:43:27,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:43:27,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:43:27,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:43:27,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:43:27,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:43:27,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:43:27,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:43:27,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:43:27,328 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:43:27,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:43:27,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:43:27,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:43:27,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:43:27,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:43:27,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:43:27,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:43:27,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:43:27,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:43:27,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:43:27,333 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:43:27,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:43:27,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:43:27,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:43:27,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:43:27,334 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:43:27,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:43:27,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:43:27,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:43:27,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:43:27,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:43:27,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:43:27,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:43:27,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:43:27,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:43:27,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:43:27,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:43:27,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 [2024-10-24 11:43:27,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:43:27,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:43:27,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:43:27,641 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:43:27,642 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:43:27,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-10-24 11:43:29,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:43:29,375 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:43:29,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-10-24 11:43:29,391 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c027beb88/3d8d94e05425431d82464277029a8a04/FLAG3d64d6256 [2024-10-24 11:43:29,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c027beb88/3d8d94e05425431d82464277029a8a04 [2024-10-24 11:43:29,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:43:29,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:43:29,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:43:29,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:43:29,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:43:29,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443c35eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29, skipping insertion in model container [2024-10-24 11:43:29,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:43:29,657 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-10-24 11:43:29,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:43:29,718 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:43:29,728 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-10-24 11:43:29,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:43:29,780 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:43:29,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29 WrapperNode [2024-10-24 11:43:29,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:43:29,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:43:29,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:43:29,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:43:29,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,842 INFO L138 Inliner]: procedures = 26, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2024-10-24 11:43:29,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:43:29,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:43:29,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:43:29,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:43:29,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,888 INFO L175 MemorySlicer]: Split 130 memory accesses to 16 slices as follows [2, 3, 6, 16, 8, 12, 13, 8, 14, 8, 6, 8, 6, 4, 12, 4]. 12 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2024-10-24 11:43:29,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:43:29,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:43:29,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:43:29,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:43:29,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (1/1) ... [2024-10-24 11:43:29,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:43:29,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:43:29,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:43:29,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:43:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:43:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:43:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:43:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:43:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:43:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:43:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 11:43:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:43:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:43:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:43:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 11:43:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 11:43:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 11:43:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-24 11:43:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-24 11:43:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-24 11:43:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:43:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:43:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 11:43:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-24 11:43:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-24 11:43:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-24 11:43:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-24 11:43:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-24 11:43:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:43:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:43:30,250 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:43:30,252 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:43:30,774 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-10-24 11:43:30,774 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:43:30,823 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:43:30,823 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:43:30,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:43:30 BoogieIcfgContainer [2024-10-24 11:43:30,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:43:30,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:43:30,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:43:30,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:43:30,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:43:29" (1/3) ... [2024-10-24 11:43:30,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3138ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:43:30, skipping insertion in model container [2024-10-24 11:43:30,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:43:29" (2/3) ... [2024-10-24 11:43:30,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3138ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:43:30, skipping insertion in model container [2024-10-24 11:43:30,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:43:30" (3/3) ... [2024-10-24 11:43:30,833 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-90.i [2024-10-24 11:43:30,869 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:43:30,870 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:43:30,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:43:30,943 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@684c6a7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:43:30,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:43:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:43:30,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:30,966 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:30,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:30,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:30,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1750151490, now seen corresponding path program 1 times [2024-10-24 11:43:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996477260] [2024-10-24 11:43:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:30,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:31,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:31,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996477260] [2024-10-24 11:43:31,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996477260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:31,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:31,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:43:31,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369330896] [2024-10-24 11:43:31,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:31,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:43:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:43:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:43:31,492 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:43:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:31,549 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2024-10-24 11:43:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:43:31,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-24 11:43:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:31,562 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:43:31,563 INFO L226 Difference]: Without dead ends: 102 [2024-10-24 11:43:31,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:43:31,571 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:31,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:43:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-24 11:43:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-24 11:43:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2024-10-24 11:43:31,618 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2024-10-24 11:43:31,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:31,618 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2024-10-24 11:43:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:43:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2024-10-24 11:43:31,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:43:31,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:31,625 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:31,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:43:31,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:31,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash -305656682, now seen corresponding path program 1 times [2024-10-24 11:43:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119263027] [2024-10-24 11:43:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:31,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119263027] [2024-10-24 11:43:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119263027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:32,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:43:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899544196] [2024-10-24 11:43:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:32,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:43:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:32,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:43:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:43:32,218 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:32,282 INFO L93 Difference]: Finished difference Result 205 states and 300 transitions. [2024-10-24 11:43:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:43:32,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-24 11:43:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:32,288 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:43:32,291 INFO L226 Difference]: Without dead ends: 104 [2024-10-24 11:43:32,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:43:32,293 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:32,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:43:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-24 11:43:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-24 11:43:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2024-10-24 11:43:32,318 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2024-10-24 11:43:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:32,320 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2024-10-24 11:43:32,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2024-10-24 11:43:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 11:43:32,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:32,323 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:32,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:43:32,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:32,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:32,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1329203845, now seen corresponding path program 1 times [2024-10-24 11:43:32,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:32,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001091769] [2024-10-24 11:43:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:32,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:32,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001091769] [2024-10-24 11:43:32,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001091769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:32,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:32,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479061111] [2024-10-24 11:43:32,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:32,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:32,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:32,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:32,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:32,871 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:33,015 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2024-10-24 11:43:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-24 11:43:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:33,018 INFO L225 Difference]: With dead ends: 312 [2024-10-24 11:43:33,019 INFO L226 Difference]: Without dead ends: 209 [2024-10-24 11:43:33,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:33,024 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 143 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:33,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 949 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-24 11:43:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2024-10-24 11:43:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-10-24 11:43:33,051 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2024-10-24 11:43:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:33,053 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-10-24 11:43:33,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-10-24 11:43:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 11:43:33,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:33,061 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:33,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:43:33,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:33,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:33,063 INFO L85 PathProgramCache]: Analyzing trace with hash -906502019, now seen corresponding path program 1 times [2024-10-24 11:43:33,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:33,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389376294] [2024-10-24 11:43:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:33,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:33,729 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:33,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389376294] [2024-10-24 11:43:33,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389376294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:33,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:33,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:33,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552342397] [2024-10-24 11:43:33,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:33,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:33,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:33,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:33,735 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:34,049 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2024-10-24 11:43:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:34,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-24 11:43:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:34,054 INFO L225 Difference]: With dead ends: 311 [2024-10-24 11:43:34,054 INFO L226 Difference]: Without dead ends: 203 [2024-10-24 11:43:34,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:43:34,059 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 367 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:34,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 464 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:43:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-24 11:43:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2024-10-24 11:43:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-10-24 11:43:34,083 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2024-10-24 11:43:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:34,085 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-10-24 11:43:34,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-10-24 11:43:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 11:43:34,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:34,091 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:34,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:43:34,091 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:34,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash -576930377, now seen corresponding path program 1 times [2024-10-24 11:43:34,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:34,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047921918] [2024-10-24 11:43:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:34,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:34,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047921918] [2024-10-24 11:43:34,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047921918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:34,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:34,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:43:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250921297] [2024-10-24 11:43:34,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:34,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:43:34,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:34,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:43:34,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:43:34,992 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:35,150 INFO L93 Difference]: Finished difference Result 228 states and 324 transitions. [2024-10-24 11:43:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:43:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-10-24 11:43:35,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:35,152 INFO L225 Difference]: With dead ends: 228 [2024-10-24 11:43:35,152 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 11:43:35,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:43:35,154 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:35,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 691 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:35,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 11:43:35,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-24 11:43:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:43:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2024-10-24 11:43:35,164 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 151 [2024-10-24 11:43:35,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:35,165 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2024-10-24 11:43:35,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2024-10-24 11:43:35,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:43:35,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:35,167 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:35,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:43:35,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:35,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:35,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1156097376, now seen corresponding path program 1 times [2024-10-24 11:43:35,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:35,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307153810] [2024-10-24 11:43:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:35,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:43:35,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307153810] [2024-10-24 11:43:35,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307153810] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:43:35,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331373463] [2024-10-24 11:43:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:35,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:43:35,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:43:35,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:43:35,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:43:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:36,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 11:43:36,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:43:36,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 11:43:36,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2024-10-24 11:43:36,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-10-24 11:43:36,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2024-10-24 11:43:36,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2024-10-24 11:43:36,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2024-10-24 11:43:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-10-24 11:43:37,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:43:37,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-10-24 11:43:37,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:43:37,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-10-24 11:43:37,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2024-10-24 11:43:37,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-24 11:43:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:37,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331373463] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 11:43:37,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:43:37,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 15] total 28 [2024-10-24 11:43:37,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496244808] [2024-10-24 11:43:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:37,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:43:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:43:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2024-10-24 11:43:37,641 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:38,000 INFO L93 Difference]: Finished difference Result 289 states and 401 transitions. [2024-10-24 11:43:38,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:43:38,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:43:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:38,005 INFO L225 Difference]: With dead ends: 289 [2024-10-24 11:43:38,005 INFO L226 Difference]: Without dead ends: 172 [2024-10-24 11:43:38,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2024-10-24 11:43:38,007 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 65 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:38,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1089 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:43:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-24 11:43:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2024-10-24 11:43:38,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 142 states have internal predecessors, (188), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 11:43:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2024-10-24 11:43:38,031 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 232 transitions. Word has length 152 [2024-10-24 11:43:38,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:38,032 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 232 transitions. [2024-10-24 11:43:38,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 232 transitions. [2024-10-24 11:43:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:43:38,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:38,034 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:38,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 11:43:38,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 11:43:38,239 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:38,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1742903390, now seen corresponding path program 1 times [2024-10-24 11:43:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290324941] [2024-10-24 11:43:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290324941] [2024-10-24 11:43:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290324941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:38,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:38,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940354154] [2024-10-24 11:43:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:38,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:38,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:38,749 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:38,908 INFO L93 Difference]: Finished difference Result 341 states and 470 transitions. [2024-10-24 11:43:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:43:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:38,912 INFO L225 Difference]: With dead ends: 341 [2024-10-24 11:43:38,912 INFO L226 Difference]: Without dead ends: 175 [2024-10-24 11:43:38,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:38,914 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 58 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:38,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 797 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-24 11:43:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2024-10-24 11:43:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.326086956521739) internal successors, (183), 139 states have internal predecessors, (183), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 11:43:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 227 transitions. [2024-10-24 11:43:38,929 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 227 transitions. Word has length 152 [2024-10-24 11:43:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:38,929 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 227 transitions. [2024-10-24 11:43:38,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 227 transitions. [2024-10-24 11:43:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:43:38,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:38,931 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:38,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:43:38,932 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:38,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1550522018, now seen corresponding path program 1 times [2024-10-24 11:43:38,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048727418] [2024-10-24 11:43:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:39,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:39,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048727418] [2024-10-24 11:43:39,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048727418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:39,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:39,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622146634] [2024-10-24 11:43:39,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:39,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:39,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:39,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:39,364 INFO L87 Difference]: Start difference. First operand 164 states and 227 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:39,507 INFO L93 Difference]: Finished difference Result 371 states and 511 transitions. [2024-10-24 11:43:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:39,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:43:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:39,509 INFO L225 Difference]: With dead ends: 371 [2024-10-24 11:43:39,510 INFO L226 Difference]: Without dead ends: 208 [2024-10-24 11:43:39,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:39,511 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 59 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:39,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 762 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-24 11:43:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 164. [2024-10-24 11:43:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.318840579710145) internal successors, (182), 139 states have internal predecessors, (182), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 11:43:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 226 transitions. [2024-10-24 11:43:39,528 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 226 transitions. Word has length 152 [2024-10-24 11:43:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:39,529 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 226 transitions. [2024-10-24 11:43:39,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 226 transitions. [2024-10-24 11:43:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-24 11:43:39,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:39,531 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:39,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:43:39,531 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:39,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash 963716004, now seen corresponding path program 1 times [2024-10-24 11:43:39,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:39,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702264127] [2024-10-24 11:43:39,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:39,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:43:40,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:40,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702264127] [2024-10-24 11:43:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702264127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:43:40,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983387754] [2024-10-24 11:43:40,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:40,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:43:40,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:43:40,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:43:40,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 11:43:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:40,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-24 11:43:40,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:43:40,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-24 11:43:40,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2024-10-24 11:43:40,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-10-24 11:43:40,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2024-10-24 11:43:40,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2024-10-24 11:43:40,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2024-10-24 11:43:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:43:41,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:43:41,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-10-24 11:43:41,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 11:43:41,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-10-24 11:43:41,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 36 [2024-10-24 11:43:41,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-24 11:43:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:41,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983387754] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 11:43:41,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:43:41,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 12] total 22 [2024-10-24 11:43:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777225443] [2024-10-24 11:43:41,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:41,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:43:41,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:41,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:43:41,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:43:41,368 INFO L87 Difference]: Start difference. First operand 164 states and 226 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:41,717 INFO L93 Difference]: Finished difference Result 385 states and 526 transitions. [2024-10-24 11:43:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:43:41,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-24 11:43:41,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:41,721 INFO L225 Difference]: With dead ends: 385 [2024-10-24 11:43:41,721 INFO L226 Difference]: Without dead ends: 222 [2024-10-24 11:43:41,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 329 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2024-10-24 11:43:41,722 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 71 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:41,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1296 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-24 11:43:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 215. [2024-10-24 11:43:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 181 states have (on average 1.3149171270718232) internal successors, (238), 183 states have internal predecessors, (238), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 11:43:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2024-10-24 11:43:41,742 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 152 [2024-10-24 11:43:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:41,743 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2024-10-24 11:43:41,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2024-10-24 11:43:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:43:41,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:41,745 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:41,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 11:43:41,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-24 11:43:41,947 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:41,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1738577047, now seen corresponding path program 1 times [2024-10-24 11:43:41,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:41,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712690051] [2024-10-24 11:43:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:41,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:42,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:42,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712690051] [2024-10-24 11:43:42,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712690051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:42,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:42,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:42,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910286287] [2024-10-24 11:43:42,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:42,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:42,213 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:42,335 INFO L93 Difference]: Finished difference Result 569 states and 783 transitions. [2024-10-24 11:43:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:42,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:43:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:42,338 INFO L225 Difference]: With dead ends: 569 [2024-10-24 11:43:42,338 INFO L226 Difference]: Without dead ends: 355 [2024-10-24 11:43:42,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:42,341 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 61 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:42,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 631 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-24 11:43:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 260. [2024-10-24 11:43:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 228 states have internal predecessors, (298), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 11:43:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2024-10-24 11:43:42,369 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 153 [2024-10-24 11:43:42,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:42,369 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2024-10-24 11:43:42,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2024-10-24 11:43:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:43:42,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:42,373 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:42,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:43:42,373 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1545272999, now seen corresponding path program 1 times [2024-10-24 11:43:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:42,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273050374] [2024-10-24 11:43:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:42,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:42,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:42,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273050374] [2024-10-24 11:43:42,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273050374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:42,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:42,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:42,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318802868] [2024-10-24 11:43:42,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:42,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:42,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:42,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:42,625 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:42,739 INFO L93 Difference]: Finished difference Result 679 states and 924 transitions. [2024-10-24 11:43:42,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:42,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:43:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:42,742 INFO L225 Difference]: With dead ends: 679 [2024-10-24 11:43:42,742 INFO L226 Difference]: Without dead ends: 420 [2024-10-24 11:43:42,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:42,744 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 74 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:42,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 579 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-24 11:43:42,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 295. [2024-10-24 11:43:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 261 states have (on average 1.314176245210728) internal successors, (343), 263 states have internal predecessors, (343), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 11:43:42,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 399 transitions. [2024-10-24 11:43:42,765 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 399 transitions. Word has length 153 [2024-10-24 11:43:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:42,765 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 399 transitions. [2024-10-24 11:43:42,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 399 transitions. [2024-10-24 11:43:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:43:42,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:42,767 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:42,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:43:42,768 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:42,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1036977173, now seen corresponding path program 1 times [2024-10-24 11:43:42,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:42,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927364230] [2024-10-24 11:43:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:42,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927364230] [2024-10-24 11:43:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927364230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:43,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075576102] [2024-10-24 11:43:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:43,038 INFO L87 Difference]: Start difference. First operand 295 states and 399 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:43,163 INFO L93 Difference]: Finished difference Result 673 states and 907 transitions. [2024-10-24 11:43:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:43,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:43:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:43,166 INFO L225 Difference]: With dead ends: 673 [2024-10-24 11:43:43,167 INFO L226 Difference]: Without dead ends: 379 [2024-10-24 11:43:43,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:43,169 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 74 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:43,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 666 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-10-24 11:43:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 258. [2024-10-24 11:43:43,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 226 states have (on average 1.2920353982300885) internal successors, (292), 227 states have internal predecessors, (292), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 11:43:43,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 344 transitions. [2024-10-24 11:43:43,193 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 344 transitions. Word has length 153 [2024-10-24 11:43:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:43,195 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 344 transitions. [2024-10-24 11:43:43,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:43,196 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 344 transitions. [2024-10-24 11:43:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 11:43:43,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:43,198 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:43,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:43:43,199 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:43,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2048094423, now seen corresponding path program 1 times [2024-10-24 11:43:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:43,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198583511] [2024-10-24 11:43:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:43,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:43,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:43,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198583511] [2024-10-24 11:43:43,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198583511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:43,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:43,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:43,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064454150] [2024-10-24 11:43:43,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:43,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:43,410 INFO L87 Difference]: Start difference. First operand 258 states and 344 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:43,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:43,513 INFO L93 Difference]: Finished difference Result 602 states and 804 transitions. [2024-10-24 11:43:43,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:43,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-24 11:43:43,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:43,516 INFO L225 Difference]: With dead ends: 602 [2024-10-24 11:43:43,516 INFO L226 Difference]: Without dead ends: 345 [2024-10-24 11:43:43,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:43,519 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 51 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:43,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 899 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:43,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-24 11:43:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 295. [2024-10-24 11:43:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 263 states have (on average 1.2927756653992395) internal successors, (340), 264 states have internal predecessors, (340), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 11:43:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 392 transitions. [2024-10-24 11:43:43,538 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 392 transitions. Word has length 153 [2024-10-24 11:43:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:43,538 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 392 transitions. [2024-10-24 11:43:43,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 392 transitions. [2024-10-24 11:43:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 11:43:43,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:43,541 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:43,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:43:43,541 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:43,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:43,542 INFO L85 PathProgramCache]: Analyzing trace with hash -980410223, now seen corresponding path program 1 times [2024-10-24 11:43:43,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:43,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614695737] [2024-10-24 11:43:43,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:43,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:44,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614695737] [2024-10-24 11:43:44,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614695737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:44,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:44,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:43:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813561299] [2024-10-24 11:43:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:44,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:43:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:43:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:43:44,193 INFO L87 Difference]: Start difference. First operand 295 states and 392 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:44,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:44,367 INFO L93 Difference]: Finished difference Result 597 states and 793 transitions. [2024-10-24 11:43:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:43:44,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-10-24 11:43:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:44,370 INFO L225 Difference]: With dead ends: 597 [2024-10-24 11:43:44,370 INFO L226 Difference]: Without dead ends: 303 [2024-10-24 11:43:44,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:43:44,371 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:44,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 777 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-10-24 11:43:44,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2024-10-24 11:43:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 265 states have (on average 1.290566037735849) internal successors, (342), 266 states have internal predecessors, (342), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 11:43:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 394 transitions. [2024-10-24 11:43:44,387 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 394 transitions. Word has length 154 [2024-10-24 11:43:44,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:44,387 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 394 transitions. [2024-10-24 11:43:44,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:44,388 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 394 transitions. [2024-10-24 11:43:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:44,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:44,390 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:44,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:43:44,390 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:44,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:44,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1554002775, now seen corresponding path program 1 times [2024-10-24 11:43:44,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:44,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277144130] [2024-10-24 11:43:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:44,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277144130] [2024-10-24 11:43:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277144130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:44,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204960033] [2024-10-24 11:43:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:44,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:44,671 INFO L87 Difference]: Start difference. First operand 297 states and 394 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:44,794 INFO L93 Difference]: Finished difference Result 816 states and 1072 transitions. [2024-10-24 11:43:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:44,799 INFO L225 Difference]: With dead ends: 816 [2024-10-24 11:43:44,800 INFO L226 Difference]: Without dead ends: 520 [2024-10-24 11:43:44,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:44,801 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 163 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:44,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 435 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:44,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-10-24 11:43:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2024-10-24 11:43:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 458 states have (on average 1.2641921397379912) internal successors, (579), 461 states have internal predecessors, (579), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 11:43:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 675 transitions. [2024-10-24 11:43:44,831 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 675 transitions. Word has length 155 [2024-10-24 11:43:44,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:44,832 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 675 transitions. [2024-10-24 11:43:44,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:44,832 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 675 transitions. [2024-10-24 11:43:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:44,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:44,834 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:44,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:43:44,835 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:44,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1947029785, now seen corresponding path program 1 times [2024-10-24 11:43:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:44,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789009668] [2024-10-24 11:43:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789009668] [2024-10-24 11:43:45,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789009668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:45,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:45,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:43:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780761687] [2024-10-24 11:43:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:45,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:43:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:45,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:43:45,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:43:45,818 INFO L87 Difference]: Start difference. First operand 517 states and 675 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:46,313 INFO L93 Difference]: Finished difference Result 1322 states and 1712 transitions. [2024-10-24 11:43:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:43:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:46,318 INFO L225 Difference]: With dead ends: 1322 [2024-10-24 11:43:46,318 INFO L226 Difference]: Without dead ends: 806 [2024-10-24 11:43:46,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:43:46,320 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 244 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:46,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1186 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:43:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-10-24 11:43:46,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 744. [2024-10-24 11:43:46,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 659 states have (on average 1.2488619119878603) internal successors, (823), 664 states have internal predecessors, (823), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:43:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 959 transitions. [2024-10-24 11:43:46,375 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 959 transitions. Word has length 155 [2024-10-24 11:43:46,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:46,375 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 959 transitions. [2024-10-24 11:43:46,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 959 transitions. [2024-10-24 11:43:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:46,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:46,379 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:46,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:43:46,379 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:46,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1705467200, now seen corresponding path program 1 times [2024-10-24 11:43:46,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:46,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354952012] [2024-10-24 11:43:46,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:46,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354952012] [2024-10-24 11:43:46,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354952012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:46,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:46,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:46,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837669852] [2024-10-24 11:43:46,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:46,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:46,668 INFO L87 Difference]: Start difference. First operand 744 states and 959 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:46,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:46,766 INFO L93 Difference]: Finished difference Result 1482 states and 1907 transitions. [2024-10-24 11:43:46,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:46,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:46,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:46,771 INFO L225 Difference]: With dead ends: 1482 [2024-10-24 11:43:46,772 INFO L226 Difference]: Without dead ends: 739 [2024-10-24 11:43:46,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:46,776 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 45 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:46,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 596 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:43:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-10-24 11:43:46,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 736. [2024-10-24 11:43:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 651 states have (on average 1.2380952380952381) internal successors, (806), 656 states have internal predecessors, (806), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:43:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 942 transitions. [2024-10-24 11:43:46,849 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 942 transitions. Word has length 155 [2024-10-24 11:43:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:46,849 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 942 transitions. [2024-10-24 11:43:46,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 942 transitions. [2024-10-24 11:43:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:46,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:46,852 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:46,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:43:46,852 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:46,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -382757696, now seen corresponding path program 1 times [2024-10-24 11:43:46,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:46,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718924134] [2024-10-24 11:43:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:47,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:47,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718924134] [2024-10-24 11:43:47,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718924134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:47,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:47,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:47,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70968562] [2024-10-24 11:43:47,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:47,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:47,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:47,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:47,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:47,141 INFO L87 Difference]: Start difference. First operand 736 states and 942 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:47,228 INFO L93 Difference]: Finished difference Result 1470 states and 1879 transitions. [2024-10-24 11:43:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:47,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:47,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:47,233 INFO L225 Difference]: With dead ends: 1470 [2024-10-24 11:43:47,234 INFO L226 Difference]: Without dead ends: 735 [2024-10-24 11:43:47,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:47,237 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 45 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:47,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 654 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:43:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-10-24 11:43:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 732. [2024-10-24 11:43:47,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 647 states have (on average 1.23338485316847) internal successors, (798), 652 states have internal predecessors, (798), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 11:43:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 934 transitions. [2024-10-24 11:43:47,286 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 934 transitions. Word has length 155 [2024-10-24 11:43:47,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:47,286 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 934 transitions. [2024-10-24 11:43:47,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 934 transitions. [2024-10-24 11:43:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:47,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:47,289 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:47,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:43:47,290 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:47,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash -534222121, now seen corresponding path program 1 times [2024-10-24 11:43:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971637108] [2024-10-24 11:43:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:47,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:47,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971637108] [2024-10-24 11:43:47,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971637108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:47,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:47,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:47,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092260367] [2024-10-24 11:43:47,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:47,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:47,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:47,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:47,627 INFO L87 Difference]: Start difference. First operand 732 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:47,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:47,731 INFO L93 Difference]: Finished difference Result 1678 states and 2136 transitions. [2024-10-24 11:43:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:43:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:47,737 INFO L225 Difference]: With dead ends: 1678 [2024-10-24 11:43:47,737 INFO L226 Difference]: Without dead ends: 947 [2024-10-24 11:43:47,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:47,739 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 82 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:47,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 699 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:43:47,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-10-24 11:43:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 944. [2024-10-24 11:43:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 836 states have (on average 1.2284688995215312) internal successors, (1027), 843 states have internal predecessors, (1027), 86 states have call successors, (86), 21 states have call predecessors, (86), 21 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 11:43:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1199 transitions. [2024-10-24 11:43:47,803 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1199 transitions. Word has length 155 [2024-10-24 11:43:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:47,804 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1199 transitions. [2024-10-24 11:43:47,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:47,804 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1199 transitions. [2024-10-24 11:43:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:47,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:47,807 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:47,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 11:43:47,807 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:47,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:47,808 INFO L85 PathProgramCache]: Analyzing trace with hash -927249131, now seen corresponding path program 1 times [2024-10-24 11:43:47,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:47,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149871097] [2024-10-24 11:43:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:47,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:48,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149871097] [2024-10-24 11:43:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149871097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:43:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223728089] [2024-10-24 11:43:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:48,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:43:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:43:48,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:43:48,754 INFO L87 Difference]: Start difference. First operand 944 states and 1199 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:49,273 INFO L93 Difference]: Finished difference Result 2063 states and 2613 transitions. [2024-10-24 11:43:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:43:49,275 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:49,280 INFO L225 Difference]: With dead ends: 2063 [2024-10-24 11:43:49,281 INFO L226 Difference]: Without dead ends: 1120 [2024-10-24 11:43:49,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:43:49,284 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 183 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:49,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1925 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:43:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-10-24 11:43:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 922. [2024-10-24 11:43:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 838 states have (on average 1.224343675417661) internal successors, (1026), 843 states have internal predecessors, (1026), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-24 11:43:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1158 transitions. [2024-10-24 11:43:49,343 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1158 transitions. Word has length 155 [2024-10-24 11:43:49,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:49,343 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1158 transitions. [2024-10-24 11:43:49,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1158 transitions. [2024-10-24 11:43:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 11:43:49,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:49,346 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:49,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 11:43:49,347 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:49,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash -596261735, now seen corresponding path program 1 times [2024-10-24 11:43:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:49,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536199944] [2024-10-24 11:43:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:49,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536199944] [2024-10-24 11:43:49,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536199944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:49,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:49,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:43:49,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529687301] [2024-10-24 11:43:49,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:49,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:43:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:43:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:49,642 INFO L87 Difference]: Start difference. First operand 922 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:49,763 INFO L93 Difference]: Finished difference Result 1964 states and 2489 transitions. [2024-10-24 11:43:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:49,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 11:43:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:49,769 INFO L225 Difference]: With dead ends: 1964 [2024-10-24 11:43:49,770 INFO L226 Difference]: Without dead ends: 1043 [2024-10-24 11:43:49,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:49,772 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 138 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:49,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 953 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-10-24 11:43:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2024-10-24 11:43:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 799 states have (on average 1.2240300375469337) internal successors, (978), 804 states have internal predecessors, (978), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-24 11:43:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1110 transitions. [2024-10-24 11:43:49,830 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1110 transitions. Word has length 155 [2024-10-24 11:43:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:49,831 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1110 transitions. [2024-10-24 11:43:49,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1110 transitions. [2024-10-24 11:43:49,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 11:43:49,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:49,834 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:49,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 11:43:49,834 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:49,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:49,835 INFO L85 PathProgramCache]: Analyzing trace with hash -991014282, now seen corresponding path program 1 times [2024-10-24 11:43:49,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:49,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925668675] [2024-10-24 11:43:49,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:49,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:49,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:50,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:50,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925668675] [2024-10-24 11:43:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925668675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:50,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:50,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:43:50,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834293438] [2024-10-24 11:43:50,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:50,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:43:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:43:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:43:50,060 INFO L87 Difference]: Start difference. First operand 883 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:50,239 INFO L93 Difference]: Finished difference Result 2513 states and 3160 transitions. [2024-10-24 11:43:50,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:43:50,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-10-24 11:43:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:50,259 INFO L225 Difference]: With dead ends: 2513 [2024-10-24 11:43:50,259 INFO L226 Difference]: Without dead ends: 1631 [2024-10-24 11:43:50,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:43:50,262 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 107 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:50,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 417 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-24 11:43:50,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1193. [2024-10-24 11:43:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1084 states have (on average 1.2306273062730628) internal successors, (1334), 1089 states have internal predecessors, (1334), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 11:43:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1506 transitions. [2024-10-24 11:43:50,341 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1506 transitions. Word has length 156 [2024-10-24 11:43:50,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:50,342 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1506 transitions. [2024-10-24 11:43:50,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1506 transitions. [2024-10-24 11:43:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 11:43:50,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:50,345 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:50,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:43:50,345 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:50,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1577820296, now seen corresponding path program 1 times [2024-10-24 11:43:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:50,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509001852] [2024-10-24 11:43:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:50,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:51,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:51,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509001852] [2024-10-24 11:43:51,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509001852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:51,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:51,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:43:51,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786859744] [2024-10-24 11:43:51,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:51,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:43:51,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:43:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:43:51,071 INFO L87 Difference]: Start difference. First operand 1193 states and 1506 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:43:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:51,697 INFO L93 Difference]: Finished difference Result 3329 states and 4203 transitions. [2024-10-24 11:43:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:43:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2024-10-24 11:43:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:51,707 INFO L225 Difference]: With dead ends: 3329 [2024-10-24 11:43:51,707 INFO L226 Difference]: Without dead ends: 2437 [2024-10-24 11:43:51,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:43:51,711 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 583 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:51,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1022 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:43:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-10-24 11:43:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1423. [2024-10-24 11:43:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2328767123287672) internal successors, (1620), 1319 states have internal predecessors, (1620), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 11:43:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1792 transitions. [2024-10-24 11:43:51,798 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1792 transitions. Word has length 156 [2024-10-24 11:43:51,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:51,799 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1792 transitions. [2024-10-24 11:43:51,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:43:51,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1792 transitions. [2024-10-24 11:43:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:51,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:51,802 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:51,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 11:43:51,803 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:51,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash -124374938, now seen corresponding path program 1 times [2024-10-24 11:43:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:51,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979810679] [2024-10-24 11:43:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:51,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:52,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:52,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979810679] [2024-10-24 11:43:52,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979810679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:52,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:52,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:52,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145135589] [2024-10-24 11:43:52,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:52,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:52,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:52,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:52,118 INFO L87 Difference]: Start difference. First operand 1423 states and 1792 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:52,377 INFO L93 Difference]: Finished difference Result 2735 states and 3459 transitions. [2024-10-24 11:43:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:43:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:52,386 INFO L225 Difference]: With dead ends: 2735 [2024-10-24 11:43:52,386 INFO L226 Difference]: Without dead ends: 1605 [2024-10-24 11:43:52,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:43:52,390 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 133 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:52,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1127 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-10-24 11:43:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1423. [2024-10-24 11:43:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2207001522070016) internal successors, (1604), 1319 states have internal predecessors, (1604), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-24 11:43:52,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1776 transitions. [2024-10-24 11:43:52,500 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1776 transitions. Word has length 157 [2024-10-24 11:43:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:52,501 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1776 transitions. [2024-10-24 11:43:52,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1776 transitions. [2024-10-24 11:43:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:52,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:52,505 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:52,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 11:43:52,506 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:52,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash -537483444, now seen corresponding path program 1 times [2024-10-24 11:43:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:52,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160469483] [2024-10-24 11:43:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:53,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:53,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160469483] [2024-10-24 11:43:53,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160469483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:53,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:53,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 11:43:53,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929174550] [2024-10-24 11:43:53,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:53,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:43:53,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:53,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:43:53,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:43:53,757 INFO L87 Difference]: Start difference. First operand 1423 states and 1776 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:54,449 INFO L93 Difference]: Finished difference Result 4135 states and 5132 transitions. [2024-10-24 11:43:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 11:43:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:54,463 INFO L225 Difference]: With dead ends: 4135 [2024-10-24 11:43:54,463 INFO L226 Difference]: Without dead ends: 3023 [2024-10-24 11:43:54,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-10-24 11:43:54,471 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 671 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:54,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1196 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:43:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2024-10-24 11:43:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1910. [2024-10-24 11:43:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1718 states have (on average 1.2054714784633294) internal successors, (2071), 1728 states have internal predecessors, (2071), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-10-24 11:43:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2375 transitions. [2024-10-24 11:43:54,647 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2375 transitions. Word has length 157 [2024-10-24 11:43:54,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:54,648 INFO L471 AbstractCegarLoop]: Abstraction has 1910 states and 2375 transitions. [2024-10-24 11:43:54,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:54,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2375 transitions. [2024-10-24 11:43:54,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:54,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:54,652 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:54,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 11:43:54,652 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:54,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1237523918, now seen corresponding path program 1 times [2024-10-24 11:43:54,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:54,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857328556] [2024-10-24 11:43:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:54,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:54,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857328556] [2024-10-24 11:43:54,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857328556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:54,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:54,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:54,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859880777] [2024-10-24 11:43:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:54,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:54,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:54,963 INFO L87 Difference]: Start difference. First operand 1910 states and 2375 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:55,208 INFO L93 Difference]: Finished difference Result 4547 states and 5606 transitions. [2024-10-24 11:43:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:55,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:55,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:55,220 INFO L225 Difference]: With dead ends: 4547 [2024-10-24 11:43:55,221 INFO L226 Difference]: Without dead ends: 2948 [2024-10-24 11:43:55,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:55,225 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 49 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:55,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 615 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2024-10-24 11:43:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2832. [2024-10-24 11:43:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2640 states have (on average 1.1981060606060605) internal successors, (3163), 2650 states have internal predecessors, (3163), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-10-24 11:43:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3467 transitions. [2024-10-24 11:43:55,388 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3467 transitions. Word has length 157 [2024-10-24 11:43:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:55,388 INFO L471 AbstractCegarLoop]: Abstraction has 2832 states and 3467 transitions. [2024-10-24 11:43:55,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:55,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3467 transitions. [2024-10-24 11:43:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:55,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:55,396 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:55,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 11:43:55,396 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:55,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1026875038, now seen corresponding path program 1 times [2024-10-24 11:43:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:55,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855122130] [2024-10-24 11:43:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:55,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:55,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855122130] [2024-10-24 11:43:55,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855122130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:55,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:55,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:55,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908373812] [2024-10-24 11:43:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:55,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:55,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:55,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:55,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:55,790 INFO L87 Difference]: Start difference. First operand 2832 states and 3467 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:56,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:56,188 INFO L93 Difference]: Finished difference Result 5622 states and 6907 transitions. [2024-10-24 11:43:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:56,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:56,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:56,202 INFO L225 Difference]: With dead ends: 5622 [2024-10-24 11:43:56,202 INFO L226 Difference]: Without dead ends: 3195 [2024-10-24 11:43:56,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:43:56,209 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 269 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:56,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 780 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:43:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-10-24 11:43:56,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 2947. [2024-10-24 11:43:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1585141596175064) internal successors, (3150), 2731 states have internal predecessors, (3150), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-10-24 11:43:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3510 transitions. [2024-10-24 11:43:56,416 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3510 transitions. Word has length 157 [2024-10-24 11:43:56,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:56,417 INFO L471 AbstractCegarLoop]: Abstraction has 2947 states and 3510 transitions. [2024-10-24 11:43:56,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:56,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3510 transitions. [2024-10-24 11:43:56,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:56,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:56,422 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:56,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 11:43:56,422 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:56,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash -396934834, now seen corresponding path program 1 times [2024-10-24 11:43:56,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:56,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705795619] [2024-10-24 11:43:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:56,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:56,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705795619] [2024-10-24 11:43:56,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705795619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:56,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:56,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:43:56,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091789073] [2024-10-24 11:43:56,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:56,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:43:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:56,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:43:56,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:43:56,741 INFO L87 Difference]: Start difference. First operand 2947 states and 3510 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:57,064 INFO L93 Difference]: Finished difference Result 4980 states and 5925 transitions. [2024-10-24 11:43:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:43:57,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:57,083 INFO L225 Difference]: With dead ends: 4980 [2024-10-24 11:43:57,084 INFO L226 Difference]: Without dead ends: 3082 [2024-10-24 11:43:57,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:43:57,090 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 49 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:57,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 823 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2024-10-24 11:43:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2947. [2024-10-24 11:43:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1559396837072453) internal successors, (3143), 2731 states have internal predecessors, (3143), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-10-24 11:43:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3503 transitions. [2024-10-24 11:43:57,254 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3503 transitions. Word has length 157 [2024-10-24 11:43:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:57,254 INFO L471 AbstractCegarLoop]: Abstraction has 2947 states and 3503 transitions. [2024-10-24 11:43:57,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3503 transitions. [2024-10-24 11:43:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:57,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:57,259 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:57,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 11:43:57,260 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:57,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1378072528, now seen corresponding path program 1 times [2024-10-24 11:43:57,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904776389] [2024-10-24 11:43:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:57,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:57,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:58,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:58,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904776389] [2024-10-24 11:43:58,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904776389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:58,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:58,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 11:43:58,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472760751] [2024-10-24 11:43:58,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:58,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 11:43:58,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 11:43:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:43:58,017 INFO L87 Difference]: Start difference. First operand 2947 states and 3503 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:58,593 INFO L93 Difference]: Finished difference Result 5172 states and 6160 transitions. [2024-10-24 11:43:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:43:58,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:58,610 INFO L225 Difference]: With dead ends: 5172 [2024-10-24 11:43:58,611 INFO L226 Difference]: Without dead ends: 3274 [2024-10-24 11:43:58,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:43:58,615 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 100 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:58,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1677 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:43:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2024-10-24 11:43:58,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3271. [2024-10-24 11:43:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2944 states have (on average 1.153532608695652) internal successors, (3396), 2963 states have internal predecessors, (3396), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:43:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 3912 transitions. [2024-10-24 11:43:58,863 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 3912 transitions. Word has length 157 [2024-10-24 11:43:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:43:58,863 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 3912 transitions. [2024-10-24 11:43:58,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 3912 transitions. [2024-10-24 11:43:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:43:58,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:43:58,871 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:43:58,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 11:43:58,871 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:43:58,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:43:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1803870151, now seen corresponding path program 1 times [2024-10-24 11:43:58,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:43:58,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253594678] [2024-10-24 11:43:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:43:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:43:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:43:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:43:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:43:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:43:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:43:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:43:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:43:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:43:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:43:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:43:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:43:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:43:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:43:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:43:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:43:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:43:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:43:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:43:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:43:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:43:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:43:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:43:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:43:59,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253594678] [2024-10-24 11:43:59,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253594678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:43:59,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:43:59,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:43:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249698688] [2024-10-24 11:43:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:43:59,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:43:59,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:43:59,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:43:59,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:43:59,414 INFO L87 Difference]: Start difference. First operand 3271 states and 3912 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:43:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:43:59,833 INFO L93 Difference]: Finished difference Result 5487 states and 6551 transitions. [2024-10-24 11:43:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 11:43:59,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:43:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:43:59,854 INFO L225 Difference]: With dead ends: 5487 [2024-10-24 11:43:59,855 INFO L226 Difference]: Without dead ends: 3265 [2024-10-24 11:43:59,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:43:59,860 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 105 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:43:59,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 926 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:43:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-10-24 11:44:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3185. [2024-10-24 11:44:00,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2858 states have (on average 1.150104968509447) internal successors, (3287), 2877 states have internal predecessors, (3287), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 3803 transitions. [2024-10-24 11:44:00,089 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 3803 transitions. Word has length 157 [2024-10-24 11:44:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:00,090 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 3803 transitions. [2024-10-24 11:44:00,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 3803 transitions. [2024-10-24 11:44:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:44:00,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:00,095 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:00,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 11:44:00,095 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:00,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 919333644, now seen corresponding path program 1 times [2024-10-24 11:44:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:00,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733062693] [2024-10-24 11:44:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:01,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:01,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733062693] [2024-10-24 11:44:01,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733062693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:01,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:01,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 11:44:01,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554680985] [2024-10-24 11:44:01,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:01,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 11:44:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:01,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 11:44:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:44:01,876 INFO L87 Difference]: Start difference. First operand 3185 states and 3803 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:44:03,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:03,052 INFO L93 Difference]: Finished difference Result 7644 states and 9097 transitions. [2024-10-24 11:44:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 11:44:03,053 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-10-24 11:44:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:03,068 INFO L225 Difference]: With dead ends: 7644 [2024-10-24 11:44:03,069 INFO L226 Difference]: Without dead ends: 5508 [2024-10-24 11:44:03,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2024-10-24 11:44:03,077 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 773 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:03,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1577 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:44:03,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2024-10-24 11:44:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 3292. [2024-10-24 11:44:03,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.1500843170320405) internal successors, (3410), 2984 states have internal predecessors, (3410), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3926 transitions. [2024-10-24 11:44:03,329 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3926 transitions. Word has length 157 [2024-10-24 11:44:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:03,329 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 3926 transitions. [2024-10-24 11:44:03,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:44:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3926 transitions. [2024-10-24 11:44:03,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 11:44:03,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:03,334 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:03,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 11:44:03,335 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:03,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:03,336 INFO L85 PathProgramCache]: Analyzing trace with hash -302479244, now seen corresponding path program 1 times [2024-10-24 11:44:03,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:03,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042910934] [2024-10-24 11:44:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:03,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:03,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:03,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042910934] [2024-10-24 11:44:03,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042910934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:03,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:03,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:44:03,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258162260] [2024-10-24 11:44:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:03,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:44:03,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:03,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:44:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:44:03,500 INFO L87 Difference]: Start difference. First operand 3292 states and 3926 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:03,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:03,790 INFO L93 Difference]: Finished difference Result 5978 states and 7209 transitions. [2024-10-24 11:44:03,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:44:03,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-10-24 11:44:03,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:03,801 INFO L225 Difference]: With dead ends: 5978 [2024-10-24 11:44:03,801 INFO L226 Difference]: Without dead ends: 3842 [2024-10-24 11:44:03,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:44:03,806 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 60 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:03,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 857 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:03,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-10-24 11:44:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3352. [2024-10-24 11:44:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3025 states have (on average 1.147107438016529) internal successors, (3470), 3044 states have internal predecessors, (3470), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 3986 transitions. [2024-10-24 11:44:04,038 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 3986 transitions. Word has length 158 [2024-10-24 11:44:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:04,039 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 3986 transitions. [2024-10-24 11:44:04,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 3986 transitions. [2024-10-24 11:44:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 11:44:04,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:04,043 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:04,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 11:44:04,044 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:04,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1603976560, now seen corresponding path program 1 times [2024-10-24 11:44:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:04,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443398689] [2024-10-24 11:44:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:04,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:04,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:04,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443398689] [2024-10-24 11:44:04,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443398689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:04,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:04,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:44:04,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593860423] [2024-10-24 11:44:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:04,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:44:04,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:04,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:44:04,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:44:04,190 INFO L87 Difference]: Start difference. First operand 3352 states and 3986 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:04,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:04,430 INFO L93 Difference]: Finished difference Result 6018 states and 7189 transitions. [2024-10-24 11:44:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:44:04,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-10-24 11:44:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:04,443 INFO L225 Difference]: With dead ends: 6018 [2024-10-24 11:44:04,443 INFO L226 Difference]: Without dead ends: 3842 [2024-10-24 11:44:04,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:44:04,449 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 60 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:04,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-10-24 11:44:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3292. [2024-10-24 11:44:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.129848229342327) internal successors, (3350), 2984 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3866 transitions. [2024-10-24 11:44:04,701 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3866 transitions. Word has length 158 [2024-10-24 11:44:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:04,701 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 3866 transitions. [2024-10-24 11:44:04,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3866 transitions. [2024-10-24 11:44:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:04,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:04,706 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:04,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 11:44:04,706 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:04,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1242179295, now seen corresponding path program 1 times [2024-10-24 11:44:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878688474] [2024-10-24 11:44:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878688474] [2024-10-24 11:44:05,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878688474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:05,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:05,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:44:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16319592] [2024-10-24 11:44:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:05,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:44:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:44:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:44:05,286 INFO L87 Difference]: Start difference. First operand 3292 states and 3866 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:05,716 INFO L93 Difference]: Finished difference Result 6517 states and 7726 transitions. [2024-10-24 11:44:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:44:05,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:05,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:05,729 INFO L225 Difference]: With dead ends: 6517 [2024-10-24 11:44:05,729 INFO L226 Difference]: Without dead ends: 3738 [2024-10-24 11:44:05,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:44:05,736 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 125 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:05,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1679 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2024-10-24 11:44:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3316. [2024-10-24 11:44:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2989 states have (on average 1.1288056206088992) internal successors, (3374), 3008 states have internal predecessors, (3374), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3890 transitions. [2024-10-24 11:44:06,074 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3890 transitions. Word has length 159 [2024-10-24 11:44:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:06,075 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 3890 transitions. [2024-10-24 11:44:06,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3890 transitions. [2024-10-24 11:44:06,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:06,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:06,081 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:06,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 11:44:06,082 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:06,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1635206305, now seen corresponding path program 1 times [2024-10-24 11:44:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:06,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988381078] [2024-10-24 11:44:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:06,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:06,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988381078] [2024-10-24 11:44:06,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988381078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:06,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:06,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:44:06,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181165267] [2024-10-24 11:44:06,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:06,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:44:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:44:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:44:06,341 INFO L87 Difference]: Start difference. First operand 3316 states and 3890 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:06,677 INFO L93 Difference]: Finished difference Result 6388 states and 7521 transitions. [2024-10-24 11:44:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:44:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:06,688 INFO L225 Difference]: With dead ends: 6388 [2024-10-24 11:44:06,689 INFO L226 Difference]: Without dead ends: 3585 [2024-10-24 11:44:06,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:44:06,695 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 139 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:06,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 579 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-10-24 11:44:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3298. [2024-10-24 11:44:06,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 2971 states have (on average 1.127566475934029) internal successors, (3350), 2990 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 3866 transitions. [2024-10-24 11:44:06,986 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 3866 transitions. Word has length 159 [2024-10-24 11:44:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:06,987 INFO L471 AbstractCegarLoop]: Abstraction has 3298 states and 3866 transitions. [2024-10-24 11:44:06,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 3866 transitions. [2024-10-24 11:44:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:06,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:06,991 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:06,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 11:44:06,991 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:06,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1648432006, now seen corresponding path program 1 times [2024-10-24 11:44:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:06,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102738011] [2024-10-24 11:44:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:06,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:07,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:07,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102738011] [2024-10-24 11:44:07,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102738011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:07,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:07,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:44:07,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460998571] [2024-10-24 11:44:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:07,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:44:07,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:07,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:44:07,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:44:07,179 INFO L87 Difference]: Start difference. First operand 3298 states and 3866 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:07,397 INFO L93 Difference]: Finished difference Result 3363 states and 3951 transitions. [2024-10-24 11:44:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:44:07,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:07,406 INFO L225 Difference]: With dead ends: 3363 [2024-10-24 11:44:07,406 INFO L226 Difference]: Without dead ends: 3361 [2024-10-24 11:44:07,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:44:07,410 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:07,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 555 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:44:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2024-10-24 11:44:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3361. [2024-10-24 11:44:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3034 states have (on average 1.1249176005273567) internal successors, (3413), 3053 states have internal predecessors, (3413), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 3929 transitions. [2024-10-24 11:44:07,638 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 3929 transitions. Word has length 159 [2024-10-24 11:44:07,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:07,639 INFO L471 AbstractCegarLoop]: Abstraction has 3361 states and 3929 transitions. [2024-10-24 11:44:07,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 3929 transitions. [2024-10-24 11:44:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:07,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:07,643 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:07,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 11:44:07,643 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:07,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1612574051, now seen corresponding path program 1 times [2024-10-24 11:44:07,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931690649] [2024-10-24 11:44:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:08,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:08,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931690649] [2024-10-24 11:44:08,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931690649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:08,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:08,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:44:08,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496053935] [2024-10-24 11:44:08,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:08,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:44:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:08,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:44:08,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:44:08,592 INFO L87 Difference]: Start difference. First operand 3361 states and 3929 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:09,184 INFO L93 Difference]: Finished difference Result 6649 states and 7805 transitions. [2024-10-24 11:44:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:44:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:09,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:09,195 INFO L225 Difference]: With dead ends: 6649 [2024-10-24 11:44:09,195 INFO L226 Difference]: Without dead ends: 3801 [2024-10-24 11:44:09,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:44:09,203 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 169 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:09,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1831 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:44:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2024-10-24 11:44:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3237. [2024-10-24 11:44:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 2910 states have (on average 1.1247422680412371) internal successors, (3273), 2929 states have internal predecessors, (3273), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-24 11:44:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 3789 transitions. [2024-10-24 11:44:09,499 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 3789 transitions. Word has length 159 [2024-10-24 11:44:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:09,500 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 3789 transitions. [2024-10-24 11:44:09,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 3789 transitions. [2024-10-24 11:44:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:09,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:09,503 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:09,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 11:44:09,503 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:09,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1623903563, now seen corresponding path program 1 times [2024-10-24 11:44:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:09,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465683154] [2024-10-24 11:44:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:09,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:10,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465683154] [2024-10-24 11:44:10,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465683154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:10,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:10,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:44:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111584936] [2024-10-24 11:44:10,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:10,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:44:10,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:10,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:44:10,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:44:10,295 INFO L87 Difference]: Start difference. First operand 3237 states and 3789 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:10,946 INFO L93 Difference]: Finished difference Result 6005 states and 7026 transitions. [2024-10-24 11:44:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:44:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:10,954 INFO L225 Difference]: With dead ends: 6005 [2024-10-24 11:44:10,954 INFO L226 Difference]: Without dead ends: 3263 [2024-10-24 11:44:10,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:44:10,960 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 188 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:10,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 2022 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:44:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2024-10-24 11:44:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 2975. [2024-10-24 11:44:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2693 states have (on average 1.1251392499071666) internal successors, (3030), 2709 states have internal predecessors, (3030), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-10-24 11:44:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3474 transitions. [2024-10-24 11:44:11,310 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3474 transitions. Word has length 159 [2024-10-24 11:44:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:11,311 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 3474 transitions. [2024-10-24 11:44:11,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3474 transitions. [2024-10-24 11:44:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:11,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:11,315 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:11,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 11:44:11,316 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:11,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1994298319, now seen corresponding path program 1 times [2024-10-24 11:44:11,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:11,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515466716] [2024-10-24 11:44:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:11,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:12,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:12,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515466716] [2024-10-24 11:44:12,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515466716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:12,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:12,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:44:12,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623102974] [2024-10-24 11:44:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:12,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:44:12,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:12,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:44:12,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:44:12,019 INFO L87 Difference]: Start difference. First operand 2975 states and 3474 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:12,411 INFO L93 Difference]: Finished difference Result 5647 states and 6635 transitions. [2024-10-24 11:44:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:44:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:12,418 INFO L225 Difference]: With dead ends: 5647 [2024-10-24 11:44:12,418 INFO L226 Difference]: Without dead ends: 3149 [2024-10-24 11:44:12,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:44:12,424 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 125 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:12,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2156 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:44:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-24 11:44:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2999. [2024-10-24 11:44:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2717 states have (on average 1.1240338608759661) internal successors, (3054), 2733 states have internal predecessors, (3054), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-10-24 11:44:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 3498 transitions. [2024-10-24 11:44:12,640 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 3498 transitions. Word has length 159 [2024-10-24 11:44:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:12,640 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 3498 transitions. [2024-10-24 11:44:12,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 3498 transitions. [2024-10-24 11:44:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:44:12,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:12,643 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:12,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 11:44:12,644 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:12,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1601271309, now seen corresponding path program 1 times [2024-10-24 11:44:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:12,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162957793] [2024-10-24 11:44:12,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:12,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162957793] [2024-10-24 11:44:12,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162957793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:12,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:12,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:44:12,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214758150] [2024-10-24 11:44:12,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:12,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:44:12,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:12,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:44:12,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:44:12,916 INFO L87 Difference]: Start difference. First operand 2999 states and 3498 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:13,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:13,162 INFO L93 Difference]: Finished difference Result 5507 states and 6412 transitions. [2024-10-24 11:44:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:44:13,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-24 11:44:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:13,169 INFO L225 Difference]: With dead ends: 5507 [2024-10-24 11:44:13,169 INFO L226 Difference]: Without dead ends: 2985 [2024-10-24 11:44:13,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:44:13,174 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 123 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:13,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 500 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-10-24 11:44:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2683. [2024-10-24 11:44:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2475 states have (on average 1.1216161616161615) internal successors, (2776), 2485 states have internal predecessors, (2776), 162 states have call successors, (162), 45 states have call predecessors, (162), 45 states have return successors, (162), 152 states have call predecessors, (162), 162 states have call successors, (162) [2024-10-24 11:44:13,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 3100 transitions. [2024-10-24 11:44:13,362 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 3100 transitions. Word has length 159 [2024-10-24 11:44:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:13,363 INFO L471 AbstractCegarLoop]: Abstraction has 2683 states and 3100 transitions. [2024-10-24 11:44:13,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 3100 transitions. [2024-10-24 11:44:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 11:44:13,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:13,366 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:13,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 11:44:13,367 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:13,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:13,367 INFO L85 PathProgramCache]: Analyzing trace with hash -194576730, now seen corresponding path program 1 times [2024-10-24 11:44:13,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:13,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36500121] [2024-10-24 11:44:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:13,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:15,430 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:15,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36500121] [2024-10-24 11:44:15,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36500121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:15,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:15,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 11:44:15,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610261103] [2024-10-24 11:44:15,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:15,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 11:44:15,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:15,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 11:44:15,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:44:15,433 INFO L87 Difference]: Start difference. First operand 2683 states and 3100 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:44:16,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:16,947 INFO L93 Difference]: Finished difference Result 5047 states and 5821 transitions. [2024-10-24 11:44:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 11:44:16,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 160 [2024-10-24 11:44:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:16,957 INFO L225 Difference]: With dead ends: 5047 [2024-10-24 11:44:16,957 INFO L226 Difference]: Without dead ends: 3317 [2024-10-24 11:44:16,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 11:44:16,962 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1337 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:16,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 974 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:44:16,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2024-10-24 11:44:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2211. [2024-10-24 11:44:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2064 states have (on average 1.122093023255814) internal successors, (2316), 2071 states have internal predecessors, (2316), 114 states have call successors, (114), 32 states have call predecessors, (114), 32 states have return successors, (114), 107 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-24 11:44:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2544 transitions. [2024-10-24 11:44:17,200 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2544 transitions. Word has length 160 [2024-10-24 11:44:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:17,200 INFO L471 AbstractCegarLoop]: Abstraction has 2211 states and 2544 transitions. [2024-10-24 11:44:17,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-24 11:44:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2544 transitions. [2024-10-24 11:44:17,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 11:44:17,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:17,203 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:17,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 11:44:17,203 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:17,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:17,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1006444245, now seen corresponding path program 1 times [2024-10-24 11:44:17,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:17,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292113926] [2024-10-24 11:44:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:17,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:17,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292113926] [2024-10-24 11:44:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292113926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:17,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:17,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:44:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310902589] [2024-10-24 11:44:17,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:17,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:44:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:17,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:44:17,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:44:17,670 INFO L87 Difference]: Start difference. First operand 2211 states and 2544 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:44:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:18,191 INFO L93 Difference]: Finished difference Result 5889 states and 6726 transitions. [2024-10-24 11:44:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:44:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2024-10-24 11:44:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:18,198 INFO L225 Difference]: With dead ends: 5889 [2024-10-24 11:44:18,198 INFO L226 Difference]: Without dead ends: 4159 [2024-10-24 11:44:18,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:44:18,201 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 387 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:18,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 583 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:44:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4159 states. [2024-10-24 11:44:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4159 to 4155. [2024-10-24 11:44:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4155 states, 3936 states have (on average 1.1148373983739837) internal successors, (4388), 3951 states have internal predecessors, (4388), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-10-24 11:44:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4155 states to 4155 states and 4728 transitions. [2024-10-24 11:44:18,439 INFO L78 Accepts]: Start accepts. Automaton has 4155 states and 4728 transitions. Word has length 161 [2024-10-24 11:44:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:18,439 INFO L471 AbstractCegarLoop]: Abstraction has 4155 states and 4728 transitions. [2024-10-24 11:44:18,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:44:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 4155 states and 4728 transitions. [2024-10-24 11:44:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 11:44:18,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:18,444 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:18,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 11:44:18,445 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:18,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -710424436, now seen corresponding path program 1 times [2024-10-24 11:44:18,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:18,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113607602] [2024-10-24 11:44:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:18,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:18,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113607602] [2024-10-24 11:44:18,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113607602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:18,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:18,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:44:18,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782162071] [2024-10-24 11:44:18,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:18,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:44:18,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:44:18,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:44:18,714 INFO L87 Difference]: Start difference. First operand 4155 states and 4728 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:19,441 INFO L93 Difference]: Finished difference Result 6286 states and 7156 transitions. [2024-10-24 11:44:19,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:44:19,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-10-24 11:44:19,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:19,452 INFO L225 Difference]: With dead ends: 6286 [2024-10-24 11:44:19,453 INFO L226 Difference]: Without dead ends: 6284 [2024-10-24 11:44:19,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:44:19,457 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 93 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:19,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1338 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:44:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2024-10-24 11:44:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 5887. [2024-10-24 11:44:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5668 states have (on average 1.1164431898376852) internal successors, (6328), 5683 states have internal predecessors, (6328), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-10-24 11:44:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 6668 transitions. [2024-10-24 11:44:19,798 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 6668 transitions. Word has length 162 [2024-10-24 11:44:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:19,800 INFO L471 AbstractCegarLoop]: Abstraction has 5887 states and 6668 transitions. [2024-10-24 11:44:19,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 6668 transitions. [2024-10-24 11:44:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 11:44:19,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:44:19,807 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:19,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-24 11:44:19,808 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:44:19,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:44:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1554429938, now seen corresponding path program 1 times [2024-10-24 11:44:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:44:19,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099744107] [2024-10-24 11:44:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:44:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:44:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:44:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:44:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:44:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:44:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:44:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:44:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:44:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:44:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:44:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:44:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:44:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:44:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:44:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:44:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:44:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:44:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:44:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:44:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:44:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:44:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:44:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:44:20,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:44:20,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099744107] [2024-10-24 11:44:20,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099744107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:44:20,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:44:20,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:44:20,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828984097] [2024-10-24 11:44:20,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:44:20,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:44:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:44:20,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:44:20,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:44:20,109 INFO L87 Difference]: Start difference. First operand 5887 states and 6668 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:20,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:44:20,590 INFO L93 Difference]: Finished difference Result 10688 states and 12102 transitions. [2024-10-24 11:44:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:44:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-10-24 11:44:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:44:20,595 INFO L225 Difference]: With dead ends: 10688 [2024-10-24 11:44:20,595 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 11:44:20,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:44:20,607 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 93 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:44:20,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 975 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:44:20,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 11:44:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 11:44:20,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 11:44:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 11:44:20,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2024-10-24 11:44:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:44:20,611 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 11:44:20,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:44:20,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 11:44:20,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 11:44:20,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 11:44:20,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-24 11:44:20,618 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:44:20,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.